Sho Katayama defeated Shuichi Sekiguchi 7-5 4-6 6-2 in the Japan F3 round of 16 on hard. The upset overturned the form book — Shuichi Sekiguchi came in leading the head-to-head 2–0. Sho Katayama claimed a first win over Shuichi Sekiguchi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-03-07 | Japan F1 | R16 | hard | Shuichi Sekiguchi | 7-5 7-6(4) |
| 2013-03-25 | Japan F3 | R16 | hard | Shuichi Sekiguchi | 6-2 6-2 |
Averages over each player's completed matches in the selected window (6 vs 74). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About